Hi, After looking on the web I need your help for a Kernel problem on a Debian Lenny virtual machine I've got the following error : [108341.247332] INFO: task nrpe:20147 blocked for more than 120 seconds. [108341.247405] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [108341.247673] INFO: task xe-update-guest:20151 blocked for more than 120 seconds. [108341.247688] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [108341.247917] INFO: task nrpe:20155 blocked for more than 120 seconds. [108341.247929] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [108341.248154] INFO: task nrpe:20184 blocked for more than 120 seconds. [108341.248167] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [243397.049770] INFO: task psql:14297 blocked for more than 120 seconds. [243397.049839] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [243397.050105] INFO: task xinetd:14302 blocked for more than 120 seconds. [243397.050119] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. I give you some technical information about my platform Virtual Machine on error idefix:~# uname -srv Linux 2.6.32-4-686-bigmem #1 SMP Tue Apr 6 15:25:34 UTC 2010 The Virtual Machine is running over a XenServer 5.6. Thanks for your help. Guillaume LAPORTE